Services

Our current service areas include:

  • Bridge & Structural Engineering
  • Geotechnical Engineering
  • Tunnel Engineering & Underground Construction
  • Risk Assessment & Risk Mitigation
  • Constructability Reviews & Construction Engineering
  • Troubleshooting & Construction Problem Solving
  • As-Built Evaluations & Failure Analysis
  • Value Engineering Reviews
  • Project Management
  • Owner Services
  • Cost Estimation, Claims & Change Order Reviews
  • Project Controls
  • CADD/BIM

In addition, members of our staff are proficient in advanced analysis in Bridge/Structural, Geotechnical, and Geostructural applications using such FEM Platforms as ADINA, ABAQUES, MIDAS, PLAXIS, and SOFiSTiK. Our expertise includes linear non-linear modeling, Static and Dynamic Analysis, Seismic Analysis of Structural and Soil-Structure Interaction applications, Staged Construction, and Geometry Control among others. The projects identified below showcase the experience of the members of our key staff in different technical disciplines.

 

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Bridge & Structural Engineering

The technical expertise and professional capabilities of our key Bridge & Structural Engineering staff cover the entire range of bridge and structural engineering applications from the complex, long-span specialty bridges such as cable-supported, arch, segmental, and truss. We also have considerable experience in the short to medium-span glider and box-girder bridges. We are proficient in both concrete, steel, and steel-composite designs for both road and rail bridges of fixed and movable spans. We possess an excellent background in addressing issues associated with bridges on curved and skewed alignments. Our bridge design experience also includes geotechnical engineering and the design of both shallow and deep foundations.

Short to Medium Span Bridges

Arch Bridges

Cable Supported Bridges

Rail Bridges

Movable Bridges

Tunnel & Underground Construction

Reliance technical team is composed of individuals with design and construction experience on a variety of different tunnel types in differing geotechnical and site conditions. These include bored tunnels in hard rock as well as soft ground; CSO tunnels; immersed-tube tunnels; cut & cover tunnels; and NATN tunnels. Other types of underground design and construction experience include such facilities as multi-story underground parking structures, subway stations, and drop shafts.

Bored Tunnels

Cut & Cover Tunnels

Immersed Tube Tunnels

NATM / SEM Tunnels

Micro Tunnels

Underground Parking Garages

Drop Shafts

Geostructural Engineering

GEOSTRUCTURAL DESIGN

The Geostructural design experience of our senior technical personnel include projects with significant soil-structure interaction aspects such as deep foundations in seismically active geographic locations; seismic analysis involving tunnels and other underground structures; design of deep support of excavation systems (SOE); top-down construction; and NATM and SEM construction.

Temporary and Permanent Earth and Water Retaining Systems

  • Secant (Caisson) Pile Walls
  • Soldier Pile and Lagging Walls
  • Shotcrete Walls
  • Sheet Pile Walls
  • Internal and External Lateral Supports (Tieback Anchors, Soil Nails, Rock Bolts, Rakers, Struts, Corner Braces)
  • Tunneling Launching, Receiving, and Access Shafts (Secant Pile Ring Compression Shafts, Sinking Caisson Shafts, Cap and Lag Shafts)
  • Retaining Walls (Redi-Rock, Reza Stone, MSE, etc.)
  • Utility Support Systems

Deep Foundation Systems

  • Micropiles
  • Helical Piers
  • Foundation Caissons
  • Driven Piles
  • Underpinning

Geostructural Design Experience

MONITORING, INSTRUMENTATION, AND PRE AND POST CONSTRUCTION CONDITION SURVEYING

  • Shoring Movement Monitoring
  • Building Monitoring
  • Inclinometers
  • Vibration Monitoring
  • Pre & Post Construction Condition Surveying
  • Vibration Impact Assessments and Control Plans

Geotechnical Engineering

Our geotechnical engineering capabilities include site assessment, geotechnical investigations, preparation & review of boring logs, geotechnical testing specifications, assessment of geotechnical material properties, preparation of geotechnical baseline reports (GBR), assessment of settlements, determination of allowable bearing loads and pile capacities, development of geotechnical specifications, assessment of deep excavations, development of instrumentation and monitoring specifications during construction, feasibility studies, etc. among others.

Geotechnical Project Experience

    Owner Services

    Reliance also provides Owner Representative (OR) and the General Engineering Consulting (GEC) services to various public agencies. Some of our ongoing and completed projects include:

    • GEC Services to the MBTA
    • OR Services on MBTA Quincy Bus Facility

    Project Management

    Senior members of our professional staff bring considerable project management and project delivery experience on projects of national and international significance as shown by the sample list of projects. Reliance is also currently providing the MBTA with Project management services on the Greenline Extension as part of the project management team.

    Cost Estimating & Project Controls

    Our Bottom-up Cost Estimating approach builds the overall estimate for a project by compiling the detailed estimates completed at lower levels of the Work Breakdown Structure. This work breakdown structure method ensures that no portions of the estimate are omitted and makes it easier to make comparisons to other estimates by third parties. We also identify project uncertainties and allocate appropriate allowances to cover these as well as escalation. In our experience, a detailed bottoms-up estimate is the most reliable estimating method, especially for a complex project. Our estimating team has experience in preparing design and construction cost estimates for both small and large projects. As a result, we have been able to accumulate a growing data base. Reliance, utilizing the considerable experience of its key staff in large and complex projects, also provides such services as Claims Avoidance Reviews, Change Order Review & Negotiation, Schedule Reviews, and Earned Value Assessments.

    Reliance has provided cost estimates and project controls for projects including:

    Value Engineering, Constructability Reviews, & Risk Assessments

    Our team of Principal Engineers brings considerable technical expertise and real-world project experience on highly complex, multi-disciplinary projects from underground construction to above-ground horizontal and vertical construction.  Our vast range of experiences makes us the ideal choice for Value Engineering, Constructability Reviews and Risk Assessments, and Risk Mitigation studies. We have provided many such services to several public owners organizations in Massachusetts, as well as other out-of-state entities, since the founding of our firm in 2013. The projects to date include:

    Specialized Technical Services

    We are equipped to provide several specialized engineering services including:

    • Seismic and Wind Engineering Analysis
    • Troubleshooting During Construction
    • Evaluation of As-Built Conditions and Safety
    • Condition Assessment of Existing Structures
    • Numerical Modeling of Geotechnical & Soil Structure Interaction
    • As-Built Condition Assessments
    • Problem Solving During Construction
    • Failure Investigations

    Reliance’s principal engineers have provided services like these on many projects, including:

    Al Awir Pedestrian Bridge, Dubai: Independent design and safety review and resolution of issues leading to excessive concrete cracking and deflections on this 110-m long, two-span cast-in-place concrete box girder bridge with an S-Curve alignment (2018).

    High-Level Technical Review of San Francisco-Oakland Bay Bridge Post Construction Issues, San Francisco, CA: Member of expert panel appointed by the California Senate Transportation Committee to provide a high-level review (2016):

    Sakonnet River Bridge, RI: Bridge Engineering Technical Expert on team investigating reasons for the cracking of the concrete parapets on the new Sakonnet River Bridge (2014).

    RA 166 Concrete Box-Girder Viaduct Flyover, Kuwait: Technical advisor on review of field conditions and implementing constructability improvements and re-design of the pre-cast concrete segments to alleviate construction difficulties (2013).

    Chambal River Cable-Stayed Bridge Collapse During Construction, Kota, India: One side of this cable-stayed bridge collapsed during the cantilever construction. Provided review of design, construction methods, and material evidence (2012).        

    M6 Grand Rapids South Beltway Bridges, George Town, MI: Investigation of construction and steel erection issues involving a total of three heavily skewed and curved simple span girder bridges (2008).

    Arthur DiTomasso Memorial Cable-Stayed Bridge, As-Built Independent Evaluation and Safety Review, Fitchburg, MA: Independent review of as-built stresses and safety assessment on behalf of MassDOT and FHWA (2006).

    Holland Tunnel Seismic Vulnerability Assessment, Port Authority of NY/NJ: Seismic safety evaluation of this historic tunnel using bi-level seismic evaluation consistent with the NYC seismic hazard design (2006).